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   <div id="projectbrief">A system-level modeling framework for designing real-time embedded systems</div>
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<div class="title">Clock.cs</div>  </div>
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<a href="_clock_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">using</span> System.Collections.Generic;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">using</span> System.Linq;</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">using</span> System.Text;</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="keyword">using</span> SystemSharp.Analysis;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="keyword">using</span> SystemSharp.Components;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="keyword">using</span> SystemSharp.DataTypes;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="keyword">using</span> SystemSharp.Meta;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">namespace </span>SystemSharp.Components.Std</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;{</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    [<a class="code" href="class_system_sharp_1_1_components_1_1_component_purpose.html">ComponentPurpose</a>(<a class="code" href="namespace_system_sharp_1_1_components.html#a1de281d1523ed9fa0978891f329163fc">EComponentPurpose</a>.SimulationOnly)]</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html">   37</a></span>&#160;    <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html">Clock</a> : <a class="code" href="class_system_sharp_1_1_components_1_1_component.html">Component</a></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    {</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#a9bf6c169ac5d54b7e91e24859035d2ab">   42</a></span>&#160;        <span class="keyword">public</span> Out&lt;StdLogic&gt; Clk { <span class="keyword">private</span> <span class="keyword">get</span>; set; }</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        <span class="keyword">private</span> <a class="code" href="class_system_sharp_1_1_components_1_1_time.html">Time</a> _hiPeriod;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        <span class="keyword">private</span> <a class="code" href="class_system_sharp_1_1_components_1_1_time.html">Time</a> _loPeriod;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <span class="keyword">private</span> <a class="code" href="class_system_sharp_1_1_meta_1_1_clock_spec_attribute.html">ClockSpecAttribute</a> _clockSpec;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#aef1a3fbdbff86a407de3903dc0b449ed">   53</a></span>&#160;        <span class="keyword">public</span> <a class="code" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#aef1a3fbdbff86a407de3903dc0b449ed">Clock</a>(<a class="code" href="class_system_sharp_1_1_components_1_1_time.html">Time</a> period, <span class="keywordtype">double</span> duty = 0.5)</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        {</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;            _hiPeriod = duty * period;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;            _loPeriod = (1.0 - duty) * period;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            _clockSpec = <span class="keyword">new</span> <a class="code" href="class_system_sharp_1_1_meta_1_1_clock_spec_attribute.html">ClockSpecAttribute</a>(period, duty);</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        }</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <span class="keyword">private</span> async <span class="keywordtype">void</span> <a class="code" href="class_system_sharp_1_1_components_1_1_process.html">Process</a>()</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        {</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            Clk.Next = <span class="charliteral">&#39;0&#39;</span>;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            await _loPeriod;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            Clk.Next = <span class="charliteral">&#39;1&#39;</span>;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            await _hiPeriod;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        }</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#a3d2814b5515d1711626cd078d92fe830">   68</a></span>&#160;        <span class="keyword">protected</span> <span class="keyword">override</span> <span class="keywordtype">void</span> <a class="code" href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#a3d2814b5515d1711626cd078d92fe830">Initialize</a>()</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        {</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            AddThread(<a class="code" href="class_system_sharp_1_1_components_1_1_process.html">Process</a>);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            ((<a class="code" href="class_system_sharp_1_1_meta_1_1_signal_descriptor.html">SignalDescriptor</a>)((<a class="code" href="interface_system_sharp_1_1_meta_1_1_i_descriptive.html">IDescriptive</a>)Clk).Descriptor).AddAttribute(_clockSpec);</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        }</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    }</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;}</div>
<div class="ttc" id="interface_system_sharp_1_1_meta_1_1_i_descriptive_html"><div class="ttname"><a href="interface_system_sharp_1_1_meta_1_1_i_descriptive.html">SystemSharp.Meta.IDescriptive</a></div><div class="ttdoc">Interface for all objects which are described by a descriptor. </div><div class="ttdef"><b>Definition:</b> <a href="_components_reflection_8cs_source.html#l00768">ComponentsReflection.cs:768</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_meta_1_1_clock_spec_attribute_html"><div class="ttname"><a href="class_system_sharp_1_1_meta_1_1_clock_spec_attribute.html">SystemSharp.Meta.ClockSpecAttribute</a></div><div class="ttdoc">This attribute is usually attached to signal descriptors and indicates that the underlying signal is ...</div><div class="ttdef"><b>Definition:</b> <a href="_std_attributes_8cs_source.html#l00032">StdAttributes.cs:32</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_std_1_1_clock_html_aef1a3fbdbff86a407de3903dc0b449ed"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#aef1a3fbdbff86a407de3903dc0b449ed">SystemSharp.Components.Std.Clock.Clock</a></div><div class="ttdeci">Clock(Time period, double duty=0.5)</div><div class="ttdoc">Constructs a new instance. </div><div class="ttdef"><b>Definition:</b> <a href="_clock_8cs_source.html#l00053">Clock.cs:53</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_component_purpose_html"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_component_purpose.html">SystemSharp.Components.ComponentPurpose</a></div><div class="ttdoc">Declares the purpose of the tagged component. </div><div class="ttdef"><b>Definition:</b> <a href="_components_attributes_8cs_source.html#l01197">ComponentsAttributes.cs:1197</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_std_1_1_clock_html_a3d2814b5515d1711626cd078d92fe830"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html#a3d2814b5515d1711626cd078d92fe830">SystemSharp.Components.Std.Clock.Initialize</a></div><div class="ttdeci">override void Initialize()</div><div class="ttdoc">Override this method to perform initialization tasks, such as registering a process. </div><div class="ttdef"><b>Definition:</b> <a href="_clock_8cs_source.html#l00068">Clock.cs:68</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_meta_1_1_signal_descriptor_html"><div class="ttname"><a href="class_system_sharp_1_1_meta_1_1_signal_descriptor.html">SystemSharp.Meta.SignalDescriptor</a></div><div class="ttdoc">Describes a signal. </div><div class="ttdef"><b>Definition:</b> <a href="_components_reflection_8cs_source.html#l01180">ComponentsReflection.cs:1180</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_std_1_1_clock_html"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_std_1_1_clock.html">SystemSharp.Components.Std.Clock</a></div><div class="ttdoc">A standard clock driver implementation which supports simulation and generation of simulative HDL for...</div><div class="ttdef"><b>Definition:</b> <a href="_clock_8cs_source.html#l00037">Clock.cs:37</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_process_html"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_process.html">SystemSharp.Components.Process</a></div><div class="ttdoc">This class represents a process. </div><div class="ttdef"><b>Definition:</b> <a href="_process_core_8cs_source.html#l00794">ProcessCore.cs:794</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_time_html"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_time.html">SystemSharp.Components.Time</a></div><div class="ttdoc">This class encodes a time or period of time which is specified as a pair of value and time unit...</div><div class="ttdef"><b>Definition:</b> <a href="_components_core_8cs_source.html#l00222">ComponentsCore.cs:222</a></div></div>
<div class="ttc" id="class_system_sharp_1_1_components_1_1_component_html"><div class="ttname"><a href="class_system_sharp_1_1_components_1_1_component.html">SystemSharp.Components.Component</a></div><div class="ttdoc">The abstract base class for defining components. </div><div class="ttdef"><b>Definition:</b> <a href="_component_8cs_source.html#l00038">Component.cs:38</a></div></div>
<div class="ttc" id="namespace_system_sharp_1_1_components_html_a1de281d1523ed9fa0978891f329163fc"><div class="ttname"><a href="namespace_system_sharp_1_1_components.html#a1de281d1523ed9fa0978891f329163fc">SystemSharp.Components.EComponentPurpose</a></div><div class="ttdeci">EComponentPurpose</div><div class="ttdoc">Hint on component usage </div><div class="ttdef"><b>Definition:</b> <a href="_components_attributes_8cs_source.html#l01175">ComponentsAttributes.cs:1175</a></div></div>
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